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Finding the Fourth Proportional to 340,465.40, 510,698.10 and 303,723.80

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Solution

The fourth proportional to 340,465.40, 510,698.10 and 303,723.80 is: 455,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,465.40 : 510,698.10 = 303,723.80 : x
  2. Step 2: Convert to fraction form
    340,465.40/510,698.10 = 303,723.80/x
  3. Step 3: Cross multiply
    340,465.40x = 510,698.10 × 303,723.80
  4. Step 4: Simplify right side
    340,465.40x = 155,111,167,584.78
  5. Step 5: Solve for x
    x = 155,111,167,584.78/340,465.40
  6. Step 6: Final answer
    x = 455,585.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.